Concept:A contract between a ship owner and a merchant for carrying cargo is known as a charter party.
Explanation:A charter party is a formal legal agreement in which a ship owner agrees to hire out a ship, or part of its cargo space, to a merchant for transporting goods.
The agreement clearly states the cargo to be carried, the voyage route, the freight charges, and the responsibilities of both the ship owner and the merchant.
A ship's manifest is only a detailed list of the cargo loaded on board, so it is not a contract.
Freight forward refers to the business of arranging the transport of goods, not a specific contract.
Cargo service is a general term for services related to handling goods and is not a legal agreement.
Therefore, among the given options, the charter party best describes such a contract.
Answer:B. charter party